Service difficulty report · Sensor · Boeing 777222

Difficulty date
June 11, 2009
Submitted
June 12, 2009
Operation
Air carrier
Aircraft
N771UA
Make and model
Boeing 777222
Aircraft serial
26932
Aircraft time
54,043 hours, 10,222 cycles
Engine
Pwa PW4077
Part
Sensor
Part number
38762112
Condition
Failed
Location
Apu Oil Sys
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

APU OIL QTY APU OIL QUANTITY LOW LEVEL SENSOR DETECTS LESS THAN 3.5 QUARTS OR SENSOR FAILURE. REPLACED APU OIL QUANTITY SENSOR. LEAK CHECKS AND OPS CHECKS OKAY.